Reinforcement Location of Plate Girders with Longitudinal Stiffeners

플레이트 거더의 수평보강재 보강 위치

  • 손병직 (건양대학교 건설시스템공학과) ;
  • 허용학 (한국표준과학연구원 신재생에너지측정센터)
  • Published : 2009.08.30

Abstract

Unlike concrete bridge, steel bridge resists external force by forming thin plate. Thus, because steel girder bridge has big slenderness ratio, buckling is a major design factor. Plate girder consists of flange and web plate. Because of economic views, web plate that resists shear forces is made by more thinner plate. Thus, web plate has much risk for buckling. The objective of this study is to analyze the buckling behaviors of plate girder and to present the proper reinforcement location of longitudinal stiffeners. Various parametric study according to the change of web height, transverse stiffeners and load condition are examined.

Keywords

References

  1. Charles, G. Salmon, John E. Johnson, 'Steel Structures(Design and Behavior)', HarperCollins College Publishers, 4th ed., 1996
  2. Narendra Taly, 'Design of Modern Highway Bridges', 1997
  3. 방명석, '강교설계의 기초', 건설도서, 1993
  4. 윤동용, 김경식,'수평보강재가 설치된 플레이트거더의 휨 연성에관한 연구', 한국강구조학회논문집, 제9권, 제6호, pp. 643 -653, 2007
  5. Graciano, c., 'Ultimate resistance of longitudinally stiffened webs subjected to patch loading', Thin-Walled Structures, Vol. 41, pp. 529 -541,2003 https://doi.org/10.1016/S0263-8231(03)00004-1
  6. Graciano, C., Johansson B., 'Resistance of longitudinally stiffened I -girders subjected to concentrated loads', Journal of Constructional Steel Research, Vol. 59, pp. 561-586,2003 https://doi.org/10.1016/S0143-974X(02)00046-9
  7. Graciano, c., Lagerqvist, 0., 'Critical buckling oflongitudinally stiffened webs subjected to compressive edge loads', Journal of Constructional Steel Research, Vol. 59, pp. 1119 -1146,2003 https://doi.org/10.1016/S0143-974X(03)00055-5
  8. Graciano, C., Casanova, E., 'Ultimate strength oflongitudinally stiffened I -girder webs subjected to combined patch loading and bending', Journal of Constructional Steel Research, Vol. 61, pp. 93 -111, 2005 https://doi.org/10.1016/j.jcsr.2004.07.006
  9. Alinia, M. M., 'A study into optimization of stiffeners in plates subjected to shear loading', Thin-Walled Structures, Vol. 43, pp. 845 -860,2005 https://doi.org/10.1016/j.tws.2004.10.008
  10. Alinia, M. M., Moosavi, S. H., 'A parametric study on the longitudinal stiffeners of web panels', Thin-Walled Structures, Vol. 46, pp. 1213 -1223, 2008 https://doi.org/10.1016/j.tws.2008.02.004
  11. 손병직, 허용학,'플레이트거더의 좌굴에 대한 수평보강재 보강효과', 대한토목학회 2008 정기학술대회논문집, P2-027, pp. 2344-2347, 2008
  12. 도로설계기준.해설, 대한토목학회, 2003
  13. ANSYS version 11.0, Structural Analysis Guide, 2006